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Finding the Fourth Proportional to 605,798.20, 908,567.70 and 268,838.20

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Solution

The fourth proportional to 605,798.20, 908,567.70 and 268,838.20 is: 403,199.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,798.20 : 908,567.70 = 268,838.20 : x
  2. Step 2: Convert to fraction form
    605,798.20/908,567.70 = 268,838.20/x
  3. Step 3: Cross multiply
    605,798.20x = 908,567.70 × 268,838.20
  4. Step 4: Simplify right side
    605,798.20x = 244,257,705,046.14
  5. Step 5: Solve for x
    x = 244,257,705,046.14/605,798.20
  6. Step 6: Final answer
    x = 403,199.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.